how can one create the types of gauges seen in the this demo:
or is it just a fake / non-functional ?
The gauges in that video don't actually seem to be moving.
That said, you can accomplish what you describe by saving several identical-but-for-pointer-position images of gauges:
pic 50,50,0 // where image-id(0) is a gauge at 20%
pic 50,50,1 // where image-id(0) is a gauge at 75%
I haven't done this yet, but there seems to be plenty of memory available for this: five screens with 20-some controls consume 1MB of the usable 4MB.
The 4D Systems folks use exactly that method of having multiple images to animate a gauge. However, they store all the image on the onboard microSD card, not in onboard flash.
Another way is to have the base image and a drawing primitive for the gauge portion only, where a diameter is defined and a value is given to illuminate the segments. This is up to the ITEAD team to develop. With a few solid primitives, a lot of cool stuff could be done.
If you want this as much as I do, please upvote :+1:
is it possible for some one to maken a step by step "how to" maken a gauge
i want to maken a temp.gauge for my aquarium.
As Wade and Paul pointed to (and I told 6 months ago in Feature Request)
The effect is done through a series of pictures.
Graphic quality, a bit less as this was created in Windows Paint
I am sure Photoshop, Adobe or the likes can produce some awesome images.
Version 0.47 TFT attached can be run in Nextion Editor Debug.
Back from Stump the Chump Competition
Any rate, easy for Nextion to swap in pic based value
- technique was shown in Nextion Gallery thread back in Sep 2015
Circular gauge with Timer Event
These are nice looking demos and will suit a lot of cases, but for arbitrary start/stop angles this approach is not feasable.